Chime in: Is Windows 10 S and Pro battery life really that different?

Windows 10 S is Microsoft's streamlined version of Windows 10, introduced in tandem with the Surface Laptop. It's built with security and performance in mind; only apps downloaded through the Windows Store can be installed. But Windows 10 S can be upgraded to Windows 10 Pro for anyone who needs a bit more freedom.

An anonymous poster on the Windows Central forum recently asked how much of hit a laptop's battery life takes when upgrading to Windows 10 Pro from Windows 10 S.